STV0900 STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

Features

■ Demodulation – RF interfaces – Each demodultor can handle: –D I R E C T VTM and DVBS QPSK – DVBS2 QPSK, 8PSK and 16APSK – Digital Nyquist root filter – With 0.20, 0.25, 0.35 excess bandwidth factors. – DVBS or DIRECTV TM – DVBS2 broadcasting (CCM) – DVBS2 adaptative (ACM) ■ Dual decoding – Up to 180 Mega DVBS2 channel bits per second (Mcbps) at input to FEC – Up to 130 Mcbps DVBS or DIRECTV TM legacy per FEC – Legacy DVB-S – DVB-S2 ■ Transport stream management – Dual data to MPEG decoder – Single ACM data to microprocessor – DVB-S2 framing ■ Interfaces – Dedicated 27 MHz clock generation for back-end decoder –I 2C serial bus interface – JTAG interface - boundary scan – 2 DiSEqC TM 2.x interfaces – GPIOs and interrupt lines – Monitoring through I 2C serial interface ■ Technology – 90 nm CMOS process – Multi supply: 1.0 V core, 2.5 V analog,

3.3 V digital interfaces

– Power saving features ■ Package – Exposed PAD LQFP 128 14x14, 0.4 pitch – 4 layer PCB recommended.

1 Application block diagrams

Figure 1. STV0900 dual broadcast application block diagram

  • dual DVBS or dual DIRECTVTM legacy decoding with dual TS output,
  • dual DVBS2 decoding with dual TS output,
  • DVBS or DIRECTVTM legacy and DVBS2 decoding with dual TS output. xtal_i [Im1,Ip1] [Qm1,Qp1] [sdat1, sclt1] STB6100 diseqc1_o diseqc1_i agc_rf1 [sda,scl] [d1<0>, clkout1, strout1, d/p1, error1] STi710X STV0900 clkout_27 DiSEqC 2.0 27MHz [Im2,Ip2] [Qm2,Qp2] [sdat2, sclt2] STB6100 agc_rf2 27MHz [d2<0>, clkout2, strout2, d/p2, error2] diseqc2_o diseqc2_i

Figure 2. STV0900 ACM application block diagram

  • single DVBS2 ACM decoding,
  • single DVBS2 ACM with single DVBS or DIRECTVTM legacy (2nd tuner not shown). xtal_i [Im1,Ip1] [Qm1,Qp1] [sdat1, sclt1] STB6100 diseqc1_o diseqc1_i agc_rf1 [sda,scl] [d1<7:0>, clkout1, strout1, d/p1, error1] STiXXXXSTV0900 clkout_27 DiSEqC 2.0

27 MHz

2 Revision history

Table 1. Document revision history 21-Dec-2006 1 Initial release.